Synthesis of TiO<sub>2</sub> photocatalyst and study on their improvement technology of photocatalytic activity

Abstract

Thin films of titanium dioxie (TiO₂) were deposited on glass using a single molecular precursor such as titanium (IV) iso-propoxide (Ti[OCH(CH₃)₂]₄, 97%) by sol-gel processing. In order to elevate photocatalytic activity of the as-grown TiO₂ films, oxygen plasma ignited by radio-frequency (RF) under vacuum condition was also used in the range of 50∼200 W within 0.5 h at room temperature. During toluene and phenol removal test, photocatalytic activity was evaluated by the measurements of the UV/vis. irradiation, infrared spectroscopy, XPS, and contact angle analysis. In this work, the effect of the plasma on the improvement of hydrophilic property of photocatalyst has mainly been investigated. A superhydrophilic property and smooth surface morphology appeared in the UV light irradiation with O₂ plasma treatment. Based on this work, we confirmed that the oxygen RF plasma treatment method was very reliable method for the synthesis of TiO₂ photocatalyst with high catalytic performance and long durability.

Original language	English
Pages (from-to)	534-538
Number of pages	5
Journal	Surface and Coatings Technology
Volume	200
Issue number	1-4 SPEC. ISS.
DOIs	https://doi.org/10.1016/j.surfcoat.2005.02.106
Publication status	Published - 1 Oct 2005

Keywords

Dip-coating
Oxygen gas
Photocatalytic activity
RF plasma surface treatment
TiO films

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2005.02.106

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@article{ae288e0cd2984177b171cde79a217062,

title = "Synthesis of TiO2 photocatalyst and study on their improvement technology of photocatalytic activity",

abstract = "Thin films of titanium dioxie (TiO2) were deposited on glass using a single molecular precursor such as titanium (IV) iso-propoxide (Ti[OCH(CH3)2]4, 97%) by sol-gel processing. In order to elevate photocatalytic activity of the as-grown TiO2 films, oxygen plasma ignited by radio-frequency (RF) under vacuum condition was also used in the range of 50∼200 W within 0.5 h at room temperature. During toluene and phenol removal test, photocatalytic activity was evaluated by the measurements of the UV/vis. irradiation, infrared spectroscopy, XPS, and contact angle analysis. In this work, the effect of the plasma on the improvement of hydrophilic property of photocatalyst has mainly been investigated. A superhydrophilic property and smooth surface morphology appeared in the UV light irradiation with O2 plasma treatment. Based on this work, we confirmed that the oxygen RF plasma treatment method was very reliable method for the synthesis of TiO2 photocatalyst with high catalytic performance and long durability.",

keywords = "Dip-coating, Oxygen gas, Photocatalytic activity, RF plasma surface treatment, TiO films",

author = "Jung, {C. K.} and Bae, {I. S.} and Song, {Y. H.} and Kim, {T. K.} and J. Vlcek and J. Musil and Boo, {J. H.}",

year = "2005",

month = oct,

day = "1",

doi = "10.1016/j.surfcoat.2005.02.106",

language = "English",

volume = "200",

pages = "534--538",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

number = "1-4 SPEC. ISS.",

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TY - JOUR

T1 - Synthesis of TiO2 photocatalyst and study on their improvement technology of photocatalytic activity

AU - Jung, C. K.

AU - Bae, I. S.

AU - Song, Y. H.

AU - Kim, T. K.

AU - Vlcek, J.

AU - Musil, J.

AU - Boo, J. H.

PY - 2005/10/1

Y1 - 2005/10/1

N2 - Thin films of titanium dioxie (TiO2) were deposited on glass using a single molecular precursor such as titanium (IV) iso-propoxide (Ti[OCH(CH3)2]4, 97%) by sol-gel processing. In order to elevate photocatalytic activity of the as-grown TiO2 films, oxygen plasma ignited by radio-frequency (RF) under vacuum condition was also used in the range of 50∼200 W within 0.5 h at room temperature. During toluene and phenol removal test, photocatalytic activity was evaluated by the measurements of the UV/vis. irradiation, infrared spectroscopy, XPS, and contact angle analysis. In this work, the effect of the plasma on the improvement of hydrophilic property of photocatalyst has mainly been investigated. A superhydrophilic property and smooth surface morphology appeared in the UV light irradiation with O2 plasma treatment. Based on this work, we confirmed that the oxygen RF plasma treatment method was very reliable method for the synthesis of TiO2 photocatalyst with high catalytic performance and long durability.

AB - Thin films of titanium dioxie (TiO2) were deposited on glass using a single molecular precursor such as titanium (IV) iso-propoxide (Ti[OCH(CH3)2]4, 97%) by sol-gel processing. In order to elevate photocatalytic activity of the as-grown TiO2 films, oxygen plasma ignited by radio-frequency (RF) under vacuum condition was also used in the range of 50∼200 W within 0.5 h at room temperature. During toluene and phenol removal test, photocatalytic activity was evaluated by the measurements of the UV/vis. irradiation, infrared spectroscopy, XPS, and contact angle analysis. In this work, the effect of the plasma on the improvement of hydrophilic property of photocatalyst has mainly been investigated. A superhydrophilic property and smooth surface morphology appeared in the UV light irradiation with O2 plasma treatment. Based on this work, we confirmed that the oxygen RF plasma treatment method was very reliable method for the synthesis of TiO2 photocatalyst with high catalytic performance and long durability.

KW - Dip-coating

KW - Oxygen gas

KW - Photocatalytic activity

KW - RF plasma surface treatment

KW - TiO films

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JF - Surface and Coatings Technology

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